I have a fresh virgin batch of Easton 340 Aftermaths .005. Hopefully this get me closer to indexed spines with respect to nock tuning before I even get the nocks installed.

I filled them up with water to clean them. They sank. I pulled one out of water at a time. Blew the water out of them. Then attempted to lay the shaft evenly on the water and spin it. Where it stopped on average after 5-7 spins...I marked the top after drying. Line of thought is that there is a heavy side and lighter side...maybe the heavy side is corresponding with the stiff side of the arrow.

Some shafts definitively went to same spot 5 of 5 spins. Some werent so easy and I spun 9-11 times.